2.2 million temp workers a week in 2024 is now a baseline for workforce plans

America’s staffing companies averaged nearly 2.2 million temporary and contract workers on assignment in a typical week in 2024, according to the American Staffing Association (ASA).

ASA also reports that in 2024, staffing created job and career opportunities for about 11 million employees, and that staffing companies hired 12.7 million temporary and contract employees over the course of 2023. The fact sheet does not reconcile those totals with its separate statement that staffing employs about 2% of the U.S. nonfarm workforce, but for enterprise buyers the takeaway is straightforward: contingent labor operates like a high-throughput pipeline. Yearly “flow” can be enormous even when the weekly deployed headcount represents a much smaller share of the labor market.

The staffing numbers that matter in a plant or service operation: weekly headcount vs. annual churn

Most organizations budget staffing as a variable line item. ASA’s weekly average helps translate that spend into operational capacity. A contingent workforce of any size forces decisions about onboarding bandwidth, supervisor ratios, and who owns daily schedule changes, the line manager or the supplier.

The annual figures tell a different story. According to ASA, 12.7 million temporary and contract employees were hired during 2023. That implies a lot of starts, stops, and redeployments behind the scenes, which is exactly where hidden costs live: repetitive orientations, repeat background checks, reissued credentials, and lost productivity in the first days of an assignment.

40% “higher-skilled” staffing is an access-control problem as much as a sourcing problem

Workforce planning can miss the mark when executives treat staffing as nothing more than a temporary patch for peak seasons. ASA’s occupational distribution figures indicate it serves a steady, year-round function. According to ASA, staffing employment is divided into 36% industrial roles, 8% health care, 24% office clerical and administrative positions, 21% professional managerial jobs, and 11% engineering, information technology, and scientific work. ASA also states that 40% of staffing employees are in higher-skilled occupations.

ASA reports that staffing employees work across industrial, office, professional, engineering and IT, and health care roles. As a contingent program scales, that mix can change where operations teams feel pressure first.

For teams writing statements of work or master service agreements now, the staffing mix should show up explicitly in process design: which job families require pre-boarding checks, what data fields suppliers must provide, and which systems are considered “gated” until training is verified.

SIA’s September 2026 research listings show multiple time-stamped updates, including a forecast update and a staffing indicator report.

On the supplier and advisory side, Staffing Industry Analysts (SIA) has been publishing frequent, time-stamped benchmarks this week, including a “US Staffing Industry Forecast: September 2026 Update” dated Sept. 1, 2026 and a “SIA | Bullhorn Staffing Indicator” report dated Sept. 1, 2026, according to SIA’s research listings. The details sit behind membership, but the listings show the market is being tracked with regularly dated updates.

That matters because the enterprises that get value from contingent labor tend to run it like a program. They review supplier performance, normalize job titles and pay bill rates, and treat onboarding throughput as a constraint to be engineered, not an administrative afterthought.

SIA’s editorial feed also points at the next practical complexity for large buyers: localization inside global governance. A Sept. 2, 2026 SIA editorial item on global contingent workforce programs emphasizes “think local” requirements, reinforcing a reality most multi-site operators eventually hit. Policy can be centralized, but site-by-site rules for credentials, residency, and onboarding steps often decide whether fill rates hold.

Where this lands in 2027 operating plans and supplier scorecards

• Ask suppliers to report both metrics in every QBR: average weekly deployed headcount and annual hires. According to ASA, America’s staffing companies averaged nearly 2.2 million temporary and contract employees during an average week in 2024, and during the course of 2023, staffing companies hired 12.7 million temporary and contract employees.
• Map your contingent workforce by job family to onboarding steps. According to ASA, staffing employees span industrial (36%), office clerical and administrative (24%), professional managerial (21%), engineering, information technology, and scientific (11%), and health care (8%) roles.
• If contingent labor is spread across sites or countries, document local exceptions as first-class requirements.